We are running BM 3.9 on NW6.5SP6 with SurfControl 6.1.

Our users are currently permitted to access websites such as Google, and
can use the links on Google to get to Gmail, etc. They get to Google
fine, but when redirected to Gmail (an HTTPS site) they are greeted with
the 403 Forbidden error. This happens with all secure website they visit.

How do we go about allowing HTTPS traffic on all websites?